
基本信息:
- 专利标题: FAN DRIVING CIRCUIT
- 专利标题(中):风扇驱动电路
- 申请号:US11842166 申请日:2007-08-21
- 公开(公告)号:US20080166110A1 公开(公告)日:2008-07-10
- 发明人: YING CHEN , JIN-LIANG XIONG
- 申请人: YING CHEN , JIN-LIANG XIONG
- 申请人地址: CN Shenzhen City TW Tu-Cheng
- 专利权人: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD,HON HAI PRECISION INDUSTRY CO., LTD.
- 当前专利权人: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD,HON HAI PRECISION INDUSTRY CO., LTD.
- 当前专利权人地址: CN Shenzhen City TW Tu-Cheng
- 优先权: CN200710200015.2 20070108
- 主分类号: H02P7/285
- IPC分类号: H02P7/285
摘要:
A fan driving circuit includes a digital-analog converting circuit (10), an amplifier circuit (40), and a controlling circuit (50). The digital-analog converting circuit receives a digital signal from a controlling integrated circuit (IC), and outputs an analog signal. The amplifier circuit receives the analog signal from the digital-analog converting circuit, and outputs an amplified analog signal at an output terminal. The controlling circuit includes an isolation diode (D1), a transistor (Q1), and a resistor (R4), an anode of the isolation diode is coupled to an output terminal of the amplifier circuit, a cathode of the isolation diode is coupled to a base of the transistor, the base of the transistor is coupled to a power supply (Vcc1) via the resistor, a collector of the transistor is coupled to the power supply, an emitter of the transistor is coupled to a fan (60).
摘要(中):
风扇驱动电路包括数模转换电路(10),放大电路(40)和控制电路(50)。 数模转换电路从控制集成电路(IC)接收数字信号,并输出模拟信号。 放大器电路从数模转换电路接收模拟信号,并在输出端输出放大的模拟信号。 控制电路包括隔离二极管(D1),晶体管(Q1)和电阻器(R4),隔离二极管的阳极耦合到放大器电路的输出端,隔离二极管的阴极 耦合到晶体管的基极,晶体管的基极经由电阻器耦合到电源(Vcc1),晶体管的集电极耦合到电源,晶体管的发射极耦合到风扇 (60)。
公开/授权文献:
- US07714528B2 Fan driving circuit 公开/授权日:2010-05-11
IPC结构图谱:
H | 电学 |
--H02 | 发电、变电或配电 |
----H02P | 电动机、发电机或机电变换器的控制或调节;控制变压器、电抗器或扼流圈 |
------H02P7/00 | 用于调节或控制直流电动机的速度或转矩的装置 |
--------H02P7/06 | .用改变磁场或电枢电流来调节或控制单个直流机电电动机的 |
----------H02P7/08 | ..用无辅助动力的手动控制方法的 |
------------H02P7/24 | ...应用放电管或半导体器件的 |
--------------H02P7/28 | ....应用半导体器件的 |
----------------H02P7/285 | .....仅控制电枢电源的 |